Keep in mind LMB will try to eat up to 1/3 their length. So if you had a 7 to 8 inch bass it could / would try to eat a 2 inch BG. Keep in mind the key word here is try! Bass at young age eat like crazy man and eat and eat and eat!!
I don't know that you would have that kind of growth in 3 weeks but if there is plenty for them to eat it could be.....
RC